Description:
In a Calc cell text can be rotated with any rotation angle. The rendering of the rotated text became broken recently on master branch (see the screenshots).
Steps to Reproduce:
1. Open Calc
2. Open Format Cells Dialog and switch to Alignment page
3. Change text rotation to 90 or 270 degree
Actual Results:
When text rotation is set to 90 degrees text disappears. When it is set to 270 degrees text rendered as stacked text, not as a rotated one.
Expected Results:
Both 90 and 270 degrees text rotation should be rendered correctly.
Reproducible: Always
User Profile Reset: No
Additional Info:
User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36

I think as expected, the issues were not just with lack of text rotation with our D2DWrite implementation, but also with glyph scaling.
Bug 107408 was for loss of scaling of glyphs in math formula. The 2eb91035c2f60e9dc476336474d51b23b666bb04 commit corrected that as well.
Adjusted summary.

Because not only one application is affected by this bug, but several (Draw, Calc, Writer, more?), I mean it would be bad not only for users, but also for the image of LibreOffice, when LO 5.3.3 will be published with this error.
IMHO it would by better when the publication of LO 5.3.3 RC2 and - if necessary - LO 5.3.3 (release) would be delayed until the error is corrected, that means the patch is pushed to LO 5.3.3.
Especially it is important, that also a windows version of LO 5.3.4 -> LO 5.3.3 with the patch will be available for test asap.

Because there are no new builds of LO 5.3 for Windows since April 24 (not 5.3.3 and also not 5.3.4) I have specifically for this test installed Ubuntu - and there LO dev 5.3.4.0.0+ .
Result:
With
Version: 5.3.4.0.0+
Build ID: bb6d2d3476b0acfd92dc75ed26836ab2ff817378
CPU Threads: 4; OS Version: Linux 4.10; UI Render: default; VCL: gtk2; Layout Engine: new;
TinderBox: Linux-rpm_deb-x86_64@70-TDF, Branch:libreoffice-5-3, Time: 2017-05-03_13:18:13
Locale: de-DE (de_DE.UTF-8); Calc: group
rotated text is displayed correctly in Calc as well as in Writer.
But I'm not sure if a test on Ubuntu can be a complete replacement for a test on Windows.
Test with LO 5.3.3 is still open!